Skeleton automatic movement with open Bar & Shield logo showcasing the rhythmic movement of the balance wheel—the “heartbeat” of the watch. 21 Jewel automatic movement with a 40-hour power reserve. Exhibition case back, crown protector, signature sweep second hand and luminous hands. Black IP case and bracelet with applied gold-tone IP bolts, markers, hands and logo. Sport fold over clasp. 43mm WR50m/165ft.